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By: Manceñido, Miguel O - Walley, Christopher DType: ArticleIn: PalaeontologyVolume: 22Series:Issue:Date: 1979Page Range: 317--337Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Baker, Peter G. - Manceñido, Miguel OType: ArticleIn: PalaeontologyVolume: 40Series:Issue:Date: 1997Page Range: 191--200Publication Info: London, Palaeontological Association, 1957-Subjects: